Supplement Manufacturers in California

Lief Labs operates over 220,000 sq ft of manufacturing space across two FDA-registered facilities in Valencia, California. The company claims USDA Organic certification and operates an ISO/IEC 17025 accredited microbiology lab. This in-house testing capability is unusual for contract manufacturers and allows faster quality control turnaround. They produce over 5 million capsules and 1 million tablets per day. Lief Labs reports holding NSF International cGMP certification since 2010, though this could not be confirmed through NSF's public GMP directory as of March 2026. Their product line includes organic-approved tablets, a category few competitors offer. The company also provides Non-GMO Project verification assistance for brands seeking that certification. They target emerging and entrepreneurial brands with minimum orders starting at 2,500 units.

Robinson Pharma operates over 1 million sq ft of manufacturing space across eight to nine facilities in Santa Ana and Costa Mesa, California. Founded in 1989, the company has the largest softgel production capacity in the United States. Their facilities produce 23 billion softgels, 7 billion gummies, and 5 billion tablets and capsules per year. Robinson Pharma reports certifications from NSF, UL, and Eurofins, and carries ISO 9001:2015 and SQF credentials, though NSF and USP could not be confirmed through their respective public directories as of March 2026. USDA Organic certification has been independently confirmed via the USDA Organic Integrity Database. The company recently expanded with new high-speed liquid production lines and additional tablet capabilities. They serve brands that need high-volume production runs with claims of the shortest lead times in the industry. Their facility count has grown from seven to nine buildings in recent years, funded partly by a $40.7 million property acquisition.

Best Formulations has manufactured dietary supplements and softgels from City of Industry, California since 1984. The company was acquired by Sirio Pharma in 2023 and now operates as Sirio Americas. This gives them access to a global network spanning Asia and Europe. Best Formulations is one of the largest plant-based softgel manufacturers in the United States. They specialize in difficult paste-style softgel formulas and probiotic handling. The company holds an FDA drug license, which is a higher regulatory standard than standard dietary supplement registration. Their four Southern California facilities total over 120,000 sq ft. They also report NPA GMP certification and NSF GMP for Sport designation, making them suitable for sports nutrition brands. The Sirio acquisition brings institutional-grade resources but may add corporate complexity for smaller brands.

Captek Softgel International (CSI) specializes in softgel and gummy manufacturing from facilities in Cerritos, Vista, and La Mirada, California. Founded in 1996, the company employs roughly 700 people and has produced over 4,000 formulations. They developed MarineGel, a marine-sourced softgel alternative to traditional bovine and porcine gelatin. This product is naturally suited for Halal and Kosher markets. Captek reports SQF certification for its 60,000 sq ft gummy facility in La Mirada with a starch-free production line. They hold independently confirmed NSF GMP certification and report NSF GMP for Sport designation. The company maintains over 160 bulk stock SKUs with low minimum order quantities for brands that want to launch quickly. Captek received private equity investment from Swander Pace Capital. They are one of the largest independent softgel contract manufacturers in the United States.

GMP Laboratories of America is a contract manufacturer of dietary supplements and homeopathic drug products based in Anaheim, California, operating since 1994. The company runs two facilities totaling over 100,000 square feet within the Anaheim Center for Advanced Technology. GMP Labs produces capsules, tablets, powders, liquids, and gummies, with a stated hard-shell encapsulation capacity exceeding 400 million capsules per month. The company holds USDA Organic certification through CCOF and NSF GMP for Sport registration. GMP Labs offers end-to-end services from custom formulation and R&D through manufacturing, packaging, and labeling, including Amazon FBA-compliant packaging and blister card packaging.

Kelker Pharma, Inc. is a contract manufacturer of dietary supplements based in Riverside, California, operating from a 75,000-square-foot facility. Founded by Tariq Kelker, M.D. (a trauma surgeon and formulation specialist), the company manufactures capsules, tablets, powders, and nutritional bars for brands in sports nutrition, weight management, and general health. The company reports a production capacity of 10 million capsules and 5 million tablets per day. In 2025, Kelker launched its own consumer brand, NUTRILINQ, focused on nutritional support for GLP-1 medication users. Kelker claims cGMP, FDA registration, USDA Organic (via Oregon Tilth), and NSF GMP/Sport certifications. NSF/ANSI 455-2 (GMP) and USDA Organic certifications were independently confirmed through public directory searches; remaining certifications are self-reported.

Matsun Nutrition is an FDA-registered contract manufacturer based in Murrieta, California, specializing in liquid dietary supplements. Founded in 1992, they have over three decades of experience in liquid vitamin and supplement manufacturing. Their facility is cGMP and ISO 9001 certified with Eurofins registration. Product formats include liquid vitamins, drops, shots, powders, gummies, and capsules. They offer low minimum order quantities starting at 12 bottles for private label, with 1-2 day shipping on in-stock formulas and 24/7 facility operations for rush jobs. They also provide custom formulation, label design, product rendering, and fulfillment services.

VIP Solutions (VIP Inc.) is a packaging and assembly services provider based in Rancho Cucamonga, California. The company operates 100,000 square feet of warehouse space with a workforce of over 400 employees and provides hand assembly, repack/rework, blister packaging, shrink wrapping, labeling, and distribution services. VIP Solutions serves brands across multiple industries including dietary supplements. The company also operates a facility in Hesperia, California. VIP Solutions holds CARF accreditation as a vocational improvement program that provides employment opportunities for persons with disabilities.

Pack Lab is a contract packaging company in San Marcos, California, established in 1991. The company operates a 30,000-square-foot facility and specializes in dietary supplement, nutraceutical, and OTC drug packaging. Pack Lab reports capacity of 100,000 bottles per day and 150,000 packets per day. The company holds FDA registration and follows cGMP practices, with OTC drug packaging certification indicating a higher compliance bar than supplement-only operations. Pack Lab provides bottle filling, labeling, pouching, stick pack filling, and shrink wrapping services. The Southern California location is convenient for brands with West Coast contract manufacturers.

Teamwork Packaging is a packaging services provider in San Bernardino, California, with over 30 years of experience in shrink wrapping and secondary packaging. The company offers both manual and automated shrink wrapping, shrink sleeving, assembly, and repackaging services for dietary supplements and consumer products. Located approximately 15 miles from VIP Solutions in Rancho Cucamonga, Teamwork Packaging serves the Southern California manufacturing corridor. The company handles supplement bottles, multipacks, and promotional bundles.

Multi-Pak Corporation has operated from its 55,000-square-foot facility in Chatsworth, California, since 1954. The company specializes in unit dose packaging formats including sachets, blister cards, daily dose packets, and stick packs. Multi-Pak is a pure-play packaging company; not a contract manufacturer that also offers packaging. Over 70 years of continuous operation is a longevity signal that few packaging providers can match. The company holds FDA registration and cGMP compliance. Located in the San Fernando Valley, Multi-Pak serves the Southern California supplement manufacturing corridor.

Brand Nutra is a contract supplement manufacturer and packaging company based in Vista, California, providing a turnkey solution from formulation through secondary packaging. Their packaging capabilities include solid-dose and powder bottle filling, stick pack filling, pressure-sensitive label application, full-body shrink sleeve application, induction sealing, metal detection, lot code and expiry date stamping, tamper-evident neck band application, cartoning, and case packing — all on integrated packaging lines. Brand Nutra has designed over 1,000 dietary supplement labels with FDA-compliant Nutrition Facts panels. Secondary packaging services include shrink wrapping, bundling, and custom pack-out options. The company handles HDPE and PET bottles in various shapes, sizes, and colors.

Stauber Performance Ingredients is a national ingredient supplier and distributor serving the nutritional, food, beverage, pharmaceutical, cosmetic, and pet care industries since 1969. Operating from headquarters in Fullerton, California with a manufacturing facility in New York and warehouses in four strategic US locations, Stauber offers over 400 ingredients spanning vitamins, minerals, botanicals, probiotics, amino acids, and specialty compounds. Their Performance Processing division, added in 2012, provides in-house blending, granulation, milling, and instantizing capabilities with a full analytical lab.

NP Nutra (Nature's Power Nutraceuticals Corp.) is a wholesale-only supplier of premium nutraceutical ingredients, botanical extracts, superfruits, and proprietary blends. Founded in 1998, the company offers over 130 ingredients sourced from partner facilities in the USA, Brazil, Chile, China, India, Indonesia, Peru, and other countries. NP Nutra developed the proprietary Triple-T Verification program for supply chain traceability; covering origin tracking, quality testing, and vendor certification. Their Nutra Organics line includes 80+ certified organic ingredients.

AIDP (Advanced Ingredients for Dietary Products) is a specialty ingredient company focused on clinically studied, branded functional ingredients for the nutrition, food, and beverage markets. Founded in 1996 and based in City of Industry, California, AIDP maintains a portfolio of 40+ branded ingredients and over 200 commodity ingredients covering cognitive health, digestive health, bone and joint support, plant proteins, and more. Notable branded ingredients include Magtein (magnesium L-threonate for cognition), PreticX (XOS prebiotic with 12+ human studies), and KoACT (collagen-calcium complex for bone density).

Niagen Bioscience (NASDAQ: NAGE), formerly ChromaDex, is a publicly traded bioscience company that pioneered the commercialization of nicotinamide riboside (NR), an NAD+ precursor. Their flagship ingredient Niagen (nicotinamide riboside chloride) is patented, clinically proven to increase cellular NAD+ by up to 150%, and has received FDA NDI notification. The company holds licensed patents from Cornell University, Dartmouth College, and Washington University in St. Louis. Niagen Bioscience also sells Tru Niagen directly to consumers. The company was renamed from ChromaDex to Niagen Bioscience in March 2025. Based in Los Angeles, California.

Alkemist Labs is an independent botanical and mushroom testing laboratory in Garden Grove, California. Founded by Elan Sudberg, the company specializes in identity and potency testing for natural products using HPTLC (High Performance Thin-Layer Chromatography), microscopy, and HPLC methods. Their ISO/IEC 17025 accreditation through A2LA specifically covers dietary supplement and botanical identification; a focused scope that reflects their deep specialization. Alkemist Labs maintains one of the largest collections of analyzed and verified botanical reference materials in the industry, containing over 15,000 specimens spanning 20 years. This collection is critical for identity testing accuracy. AG1 (Athletic Greens) is a notable client. Alkemist publishes a biannual report on the top botanicals and fungi that commonly fail identity testing, providing transparency that is rare in the testing industry. They are a smaller, specialized lab compared to Eurofins or SGS, which means more personalized service but potentially longer wait times during peak demand.

Qalitex Laboratories reports ISO/IEC 17025 accreditation for its dietary supplement, cosmetic, and consumer goods testing laboratory with facilities in Irvine and San Diego, California. Their A2LA accreditation scope covers identity, potency, heavy metals (ICP-MS), microbiology (USP methods), and pesticide testing for dietary supplements. Qalitex also offers preservative efficacy testing, stability studies under ICH guidelines, and regulatory compliance support. Testing programs are designed to meet 21 CFR Part 111, California Proposition 65, Amazon compliance, and Health Canada NHP Directorate standards. Standard panel turnaround starts at 48 hours. Qalitex publishes educational resources on ISO 17025 accreditation and independent lab testing, including a March 2026 guide for testing labs seeking accreditation.

Anresco Laboratories is a family-owned analytical testing company founded in 1943 in San Francisco, California, with over 82 years of experience. The company is ISO/IEC 17025:2017 accredited and recognized by the FDA. Anresco operates its headquarters and primary laboratory in San Francisco with branch offices in Los Angeles, New York, and Fort Lauderdale. In a recent strategic move, Anresco united with NJ Labs to form a nationwide testing network, expanding their geographic coverage. Their testing capabilities span food safety, cannabis compliance, and dietary supplement validation, including identity, potency, contaminant, and microbiological testing. Anresco was also an exhibitor at SupplySide Global 2025.

Nutralliance is a dietary supplement R&D and formulation consultancy based in Irvine, California. The company provides formulation services, ingredient sourcing, regulatory guidance, and product development support for supplement brands. Unlike full-service CMOs, Nutralliance focuses on the front-end product development phase; helping brands design formulas, select ingredients, navigate regulatory requirements, and prepare products for manufacturing. They also offer stability study coordination and clinical trial design assistance.

Nutri-Con is a supplement industry consulting firm based in San Clemente, California, specializing in product development and formulation services. Founded by industry veterans, Nutri-Con helps brands with custom formula design, ingredient selection, product positioning, and regulatory compliance for dietary supplements. They serve as an independent product development partner, providing expertise across multiple dosage forms and ingredient categories without the conflicts of interest that can arise when CMOs also provide formulation services.

Gold Coast Ingredients (GCI) is a wholesale flavor and color manufacturer founded in 1985, operating facilities in California and Pennsylvania. The company serves the nutraceutical, food, beverage, oral care, and cosmetics industries with custom formulations in powder, spray-dried (encapsulated), freeze-dried, liquid, emulsion, and extract formats. Gold Coast's R&D team specializes in flavoring protein beverages, supplements, nutrition bars, energy drinks, and vitamins. They provide custom masking agents and sweetness enhancers designed to reduce unwanted tastes and bitterness from natural ingredients like stevia, vegetable protein, amino acids, and fish oil. GCI maintains QAI organic, ISA Halal, and OU/KOF-K Kosher certifications.

Carlsbad Technology is a dietary supplement regulatory consulting firm with nearly three decades of experience. Their team includes former FDA compliance and inspection officials, pharmacists, formulation specialists, and quality assurance experts. The company specializes in NDI (New Dietary Ingredient) notifications, FDA labeling compliance, cGMP auditing, quality systems evaluation, and regulatory strategy for supplement companies. Carlsbad Technology helps companies navigate the FDA pre-market notification process for products containing ingredients not marketed in the US prior to October 1994. Based in California, the firm serves companies at all stages from startups entering the supplement market to established brands facing regulatory challenges.